Struct all_is_cubes::universe::FrameClock

pub struct FrameClock { /* fields omitted */ }

Algorithm for deciding how to execute simulation and rendering frames. Platform-independent; only returns decisions given provided information.

Implementations

impl FrameClock

pub fn new() -> Self

pub fn advance_to(&mut self, instant: Instant)

Advance the clock using a source of absolute time.

This cannot be meaningfully used in combination with request_frame().

#[must_use]pub fn request_frame(&mut self, time_since_last_frame: Duration) -> bool

Reacts to a callback from the environment requesting drawing a frame ASAP if we're going to (i.e. requestAnimationFrame on the web). Drives the simulation clock based on this input (it will not advance if no requests are made).

Returns whether a frame should actually be rendered now. The caller should also consult should_step() afterward to schedule game state steps.

This cannot be meaningfully used in combination with advance_to().

pub fn should_draw(&self) -> bool

pub fn did_draw(&mut self)

pub fn should_step(&self) -> bool

pub fn step_length(&self) -> Duration

pub fn did_step(&mut self)

Trait Implementations

impl Default for FrameClock

fn default() -> Self

Returns the "default value" for a type.